[LEDE-DEV] [PATCH 0/3] uqmi: fix more dial-in issues

davidea list at davidea.it
Tue May 8 14:39:42 PDT 2018


hi ,

i have the same modem, with the same ec25 , please pay attention ,

if you put it int gprs mode or if you are in a enviroment where it fall 
back to gprs, the board (gl mifi)  is not designed to supply the correct 
current, then when it is going to attach to the network, the supply 
drops due to high current consumation and reboot

this is clearly stated in the ec25 documentations, they say about 1.5A

you can mitigate this behaviour adding a capacitor on the supply line , 
it doesn't resolve all the reboot , now it reboot only if i use to 
transmit continously


i've reported this problem to glinet about six month ago ....

bye


Il 07/02/2018 22:35, Koen Vandeputte ha scritto:
>
>
> On 07-02-18 22:14, Levente Kovacs wrote:
>> On Wed,  7 Feb 2018 13:23:25 +0100
>> Koen Vandeputte <koen.vandeputte at ncentric.com> wrote:
>>
>>>> Quectel EC25-A
>> Does the EC25 work without any kernel patch? I was testing EC25 with 
>> 17.01.1,
>> and it was working only with a kernel patch. Can you give me a status 
>> update
>> on this? Now I migrated to 17.01.4, but I haven't tested the 
>> qmi/ethernet
>> interface.
> This modem only supports raw-ip mode for QMI, which was only added in 
> kernel 4.5.
> The 17.01 branch uses 4.4, while the master branch uses 4.9 for my 
> target containing this modem (ar71xx - Gl.Mifi)
>
>> For the time being, I'm using it with the PPP interface.
>>
>> What is your estimate on timing of your patch goes into a release?
> afaik, the required patch(es) have not been backported yet.
> If it's no too much work, I'm more than happy to provide a backport 
> (it's a bit out of my scope as I'm mostly using Master)
>
> I'll try to check it tomorrow and will let you know :)
>> Thanks,
>> Levente
>>
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>
>
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